There are a number of depth cues, and we rely on all of them depending on the situation in which we find ourselves as perceivers. Why, according to some theorists, did natural selection favor a system influenced by so many cues, especially given that the information provided by these cues is so often redundant?
A) Different cues become important in different circumstances.
B) Certain cues drop out of function as we get older and more experienced in a world of objects.
C) Each cue is executed by a different specific brain region, and each of these brain regions operates independently of the others.
D) Natural selection always favors redundancy of function, so the case of perception is not unique.

Question

Quizplus · Accepted Answer

Different cues become important in different circumstances, so it is advantageous for our perceptual system to be able to adapt to various situations and environments. For example, while binocular disparity is a powerful depth cue, it only works over a limited range of distances and can be affected by certain visual conditions. Other cues like motion parallax or relative size may be more reliable in certain contexts. Therefore, the combination of multiple depth cues allows for more accurate and flexible perception.

There Are a Number of Depth Cues, and We Rely